Olivine distribution
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Olivine distribution

Spreading olivine sand accelerates the natural process of reacting with atmospheric CO₂, sequestering it as stable silicates.

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The mineral olivine reacts naturally with atmospheric CO₂. When amplified this process is a carbon dioxide removal method called "enhanced weathering". It involves grinding olivine to a fine sand (to increase the surface area), spreading the sand (for example on walking paths) and waiting.

Over time the olivine reacts with water and the air to sequester CO₂ and produce stable silicates.